[INFO] updating cached repository dovahkiin16/minigrep-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dovahkiin16/minigrep-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dovahkiin16/minigrep-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/dovahkiin16/minigrep-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dovahkiin16/minigrep-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dovahkiin16/minigrep-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dovahkiin16/minigrep-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dovahkiin16/minigrep-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4b58b2bed8bb4f37c3161890b7b85cca59b679c
[INFO] sha for GitHub repo dovahkiin16/minigrep-rs: d4b58b2bed8bb4f37c3161890b7b85cca59b679c
[INFO] validating manifest of dovahkiin16/minigrep-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dovahkiin16/minigrep-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dovahkiin16/minigrep-rs
[INFO] finished frobbing dovahkiin16/minigrep-rs
[INFO] frobbed toml for dovahkiin16/minigrep-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/dovahkiin16/minigrep-rs/Cargo.toml
[INFO] started frobbing dovahkiin16/minigrep-rs
[INFO] finished frobbing dovahkiin16/minigrep-rs
[INFO] frobbed toml for dovahkiin16/minigrep-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dovahkiin16/minigrep-rs/Cargo.toml
[INFO] crate dovahkiin16/minigrep-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dovahkiin16/minigrep-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dovahkiin16/minigrep-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e23ab4730e51d9ad4789e5bf0bf90259a0f2b8b4e30da69bd7d20fb84bf03a6f
[INFO] running `"docker" "start" "-a" "e23ab4730e51d9ad4789e5bf0bf90259a0f2b8b4e30da69bd7d20fb84bf03a6f"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0405]: cannot find trait `Error` in this scope
[INFO] [stderr]   --> src/main.rs:29:50
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn run(config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |                                                  ^^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::error::Error;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `minigrep`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e23ab4730e51d9ad4789e5bf0bf90259a0f2b8b4e30da69bd7d20fb84bf03a6f"`
[INFO] running `"docker" "rm" "-f" "e23ab4730e51d9ad4789e5bf0bf90259a0f2b8b4e30da69bd7d20fb84bf03a6f"`
[INFO] [stdout] e23ab4730e51d9ad4789e5bf0bf90259a0f2b8b4e30da69bd7d20fb84bf03a6f